摘要
建立了异烟酸-巴比妥酸测定白酒中氰化物的方法,并对该法进行验证,对测定结果的不确定度进行评定。结果表明在0-2.0μg/mL范围内,吸光度对氰离子含量线性关系良好（R2=0.9993）,回收率在92%-95%,RSD为3.56%,酒样中氰化物含量为（0.21±0.008）μg/mL（k=2）。本方法较国标方法操作简便、快捷,且克服了国标法中显色液浑浊、回收率低等问题,可作为白酒中氰化物检测的较好方法。
To establish the isonicotinic acid-barbituric acid method for the determination of cyanide in Chinese spirits,and also validates the method,and assess the uncertainty of determination results.Results showed that the liner range of cyanide was 0~2.0μg/mL（R2=0.9993）,the recovery rate was 92%~95%,RSD was 3.56%,and cyanide in the sample was（0.21±0.008）μg/ml（k=2）.Compared with the national standard method,this method is simple,rapid,and overcomes the problem of color liquid turbidity and low recovery rate.It could be a better detection method of cyanide in Chinese spirits.
出处
《中国酿造》
CAS
2013年第5期82-85,共4页
China Brewing
基金
江苏省科学技术厅省级科技创新与成果转化(科技服务平台)专项引导资金资助项目(BM2012025)
宿迁市科技创新专项资金资助项目(M201101)
关键词
氰化物
白酒
异烟酸
巴比妥酸
不确定度
cyanide
Chinese spirits
isonicotinic acid
barbituric acid
uncertainty
